Portion of flow control valve



FIG. 1 is a front view thereof;

FIG. 2 is a back view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a front, right side overhead, perspective view thereof;

FIG. 8 is a back, right side, underneath perspective view thereof; and,

FIG. 9 is an enlarged view from 9.−9. of FIG. 6.

The broken lines in the drawings are included for the purpose of illustrating environment and form no part of the claimed design. 

CLAIM The ornamental design for a portion of flow control valve, as shown and described. 